JPH0674927B2 - Ceiling-hung far infrared heater - Google Patents

Description

TECHNICAL FIELD The present invention relates to a far-infrared heater of a type suspended from a ceiling of a room.

BACKGROUND ART A typical prior art is shown in FIG. A gas burner 2 is attached to one end 1a of the single heat radiation pipe 1. A suction fan 3 is attached to the other end 1b of the heat radiation pipe 1. Gas fuel is supplied to the gas burner 2 from a pipe line 4. By driving the suction fan 3, the radiating pipe 1
Combustion air and cooling air are sucked into the heat radiating pipe 1 from one end 1a of the gas, and the gas fuel burns in the heat radiating pipe 1. The radiating pipe 1 emits a far-infrared region suitable for heating by being heated, and in order to prevent the radiating pipe 1 from being excessively heated, as described above, Cooling air is sucked in.

Problems to be Solved by the Invention In such a prior art, in order to perform combustion in the heat radiating pipe 1, it is necessary to make the heat radiating pipe 1 have a large diameter, so that the shape becomes large and the weight becomes large. Becomes In order to burn out the gas fuel in the radiating pipe 1, the radiating pipe 1 must be relatively long, and therefore the radiating pipe 1 cannot be set to a desired length, which unnecessarily increases the size. Will be done. Further, the heat radiation area to be heated is relatively narrow, and it is desired to perform heating over a wide area. Furthermore, in such a prior art, cooling air is required, and if the surface area of the radiation pipe 1 cannot be increased, the thermal efficiency is poor.

The object of the present invention is to reduce the size and weight, to widen the heat radiation area to be heated, and to heat the entire room uniformly without accumulating heat in the ceiling part. It is to provide a far infrared heater.

Means for Solving the Problems The present invention has a first chamber having a combustion chamber, a supply chamber to which combustion gas from the combustion chamber is supplied for heating, and an exhaust chamber to which exhaust gas used for heating is introduced. A header and a first radiating pipe, one end of which is commonly connected to the supply chamber of the first header and arranged in parallel with each other, and which emits far infrared rays, and one end of which is commonly connected to the discharge chamber of the first header. A second heat dissipating pipe that is arranged in parallel with the first heat dissipating pipe and radiates far infrared rays; a second hedder to which the other ends of the first heat dissipating pipe and the second heat dissipating pipe are commonly connected; A cutoff reflector that covers the upper surface and both side surfaces of the pipe and the second heat dissipation tube; and a first heat dissipation tube that covers the upper surface and both side surfaces of the heat shield reflection plate.
A ceiling-suspended type including: a cover having a means for supporting a heat radiation tube and a suspending means; and a pressing fan provided on an upper surface of the cover for sending air between the cover and the heat shield reflection plate downward. It is an infrared heater.

Operation According to the present invention, the first radiating pipe and the second radiating pipe (hereinafter,
When there is no need to distinguish between the two, it is simply referred to as a "radiation pipe"), the combustion gas from the combustion chamber is supplied in this order, and since the radiation pipes are parallel to each other, it is possible to reduce the size and weight. Further, the heat radiation area can be widened.
Further, since the fuel does not burn in the radiating pipe, the radiating pipe can be set to a desired length and thickness, the surface area of the radiating pipe that radiates far infrared rays can be increased, and thermal efficiency can be improved. In addition, the upper surface and both side surfaces of the radiating pipe are covered with a heat-shielding reflection plate, and the air around it is pushed downward by a pushing fan, so even if it is a ceiling hanging type, it does not store heat in the ceiling part, The heating can be performed uniformly, and the thermal efficiency is improved from this point as well.

Embodiment FIG. 1 is a horizontal sectional view of an embodiment of the present invention, and FIG. 2 is an exploded perspective view thereof. A ceiling-hung far-infrared heater according to the present invention is provided in the room set by the wall 10 of the building.
11 is hung from the ceiling by chains 12 and 13. An inner cylinder 14 and an outer cylinder 15 are provided through the wall 10. End plates 16 and 17 are fixed to the ends of the inner cylinder 14, and a cylinder 18 having a large number of through holes is attached. A large number of through holes are also formed in the end portion of the outer cylinder 15. Combustion air that flows in through the space between the inner cylinder 14 and the outer cylinder 15 is sucked from the pipe 19 by the fan 20 housed in the heater 11 according to the present invention,
It is supplied from the pipe line 21 to the combustion chamber 22. A Bunsen gas burner 23 is provided in the combustion chamber 22, and gas fuel is supplied to the gas burner 23. In the combustion chamber 22, gas fuel is burned by the gas burner 23, and the high-temperature combustion gas is piped.
It is supplied from 24 to the supply chamber 26 of the first header 25. Supply room 26
A plurality of (four in this embodiment) first radiating pipes 27 are connected to one end. Combustion gas from the supply chamber 26 passes through the first heat radiating pipe 27, and the other end of the combustion gas is connected to the second radiating pipe 27.
Guided by Hezda 28. The first header 25 has an exhaust chamber 29 into which the exhaust gas used for heating is introduced, and one end of a plurality of (two in this embodiment) second radiating pipes 30 is connected to the exhaust chamber 29. . The first and second heat radiation pipes 27 and 30 are arranged in parallel to each other, have the same shape and dimensions, and their pipe axes are in one horizontal plane. The other end of the second radiating pipe 30 is
Hezda 28 is connected. Supply room at 1st Heds 25
The discharge chamber 29 is separated from the discharge chamber 29 by a partition plate 59.

FIG. 3 is an enlarged plan view of a part of the first radiating pipe 27. The first heat radiating pipe 27 is formed by applying a paint 27b that radiates far infrared rays by being heated on the outer peripheral surface of a pipe body 27a made of steel or ceramics for guiding combustion gas. The far infrared rays radiated have a wavelength of, for example, about 5 to 10 μm, and the far infrared rays are most efficiently radiated when the first radiating tube 27 is heated to about 300 to 400 ° C. The second heat radiating pipe 30 also has a similar configuration. The first and second heat radiation pipes 27 and 30 may have other configurations.

The exhaust gas from the discharge chamber 29 of the first header 25 is guided to the inner cylinder 14 from the pipe 32 and is diffused to the atmosphere.

4 is a sectional view taken along the section line IV-IV in FIG. 1, and FIG. 5 is a sectional view taken along the section line V-V in FIG. Referring to these drawings, first and second heat radiation pipes
27 and 30, the first support member 33 is inserted near one end thereof, and the other second support member 34 is inserted near the other end thereof. Mounting pieces 35 formed on the tops of the support members 33, 34,
36 is inserted through the through holes 38 and 39 formed in the heat shield reflection plate 37, and is fixed to the lower surface of the top surface 41 of the cover 40. Suspending members 42 and 43 to which the chains 12 and 13 are connected are fixed to the top surface 41. The top surface 41 is formed with a blower port 44, and the blower fan 44 fixed to the upper portion of the top surface 41 is formed in the blower port 44.
Air is pumped from 45. The cover 40 has an end surface 46 on the second header 28 side. The outer peripheral surfaces 60, 66 of the first and second headers 25, 28 (see FIGS. 7 and 8 described later) are in contact with the lower surface of the heat shield reflection plate 37. Between the lower surface of the cover 40 and the upper surface of the heat shield reflection plate 37, a space 47 through which the air from the blower opening 44 passes is formed, and as a result, as shown by reference numerals 48, 49 and 50. , Air is blown downward. In this way, the heat-shielding / reflecting plate 37 shields the heat from the first and second radiating pipes 27, 30 and reflects it downward, and the cover 40 is heated to a high temperature by the air flowing through the space 47. Can be prevented. Therefore, the ceiling on which the heater 11 is suspended is not heated to a high temperature, and therefore the ceiling is continuously heated over a long period of time to carbonize and spontaneously ignite. Ignition is prevented.

An end portion 51 of the cover 40 on the combustion chamber 22 side is fitted and connected in another cover 52 that covers the combustion chamber 22, the pushing fan 20, and the like.

The first header 25 is configured by combining a pair of pressed plate bodies 53 and 54. In the supply chamber 26, a rectifying plate 55 interposed between the lower parts of these plate bodies 53, 54 is housed. As a result, the combustion gas from the combustion chamber 22 is
Is introduced into the supply chamber 26, collides with the straightening vane 55, and passes through the gaps 56, 57, 58 between the straightening vane 55 and the inner peripheral surface of the feed chamber 26 to the plurality of first radiating pipes 27 at a uniform flow rate. Can be supplied. In the first header 25, the supply chamber 26 and the discharge chamber 29 are partitioned by a partition plate 59. Thus the first
The combustion gas supplied to the radiating pipe 27 is supplied almost evenly. Therefore, all of the first radiating pipes 27 have a substantially uniform temperature and can be heated to the optimum temperature for radiating far infrared rays, so that the amount of far infrared rays generated is not uneven, and the heating effect is obtained. Is achieved excellently.

FIG. 7 is a perspective view of a part of the first support member 33. First
The support member 33 has an outer peripheral surface 60 along the lower surface of the heat shield reflection plate 37, and a mounting cylinder 61 through which the first and second heat radiation pipes 27 and 30 are inserted is fixed. The mounting cylinder 61 projects toward the other second support member 34 side. First and second radiating pipe
27 and 30 are reference numerals 62 on the first header 25 side of the first support member 33.
It is fixed by welding as shown in (see FIG. 5).

FIG. 8 is a perspective view of a part of the second support member 34. The second support member 34 has a support hole 63 through which the first and second heat radiation pipes 27 and 30 are commonly inserted. The support hole 63 is formed with a protrusion 64 for stably supporting the first and second heat radiation pipes 27 and 30. Thus, the first and second radiating pipes 27, 30 are fixed to the first support member 33 near one end, and the second support member 34 near the other end by the second support member 34 in the tube axial direction (the horizontal direction in FIG. 5). ) Displaceably supported. Therefore, even if the first and second radiating pipes 27, 30 are heated and thermally deformed, they can be expanded and contracted in the axial direction of the pipe, so that thermal stress is not generated, and Thermal deformation is prevented, and damage to connection points and welding points is prevented. As another embodiment of the present invention, the first support member 34 is provided with the first and second heat radiating pipes 2.
7, 30 may be fixed, and the first and second heat radiation pipes 27, 30 may be supported by the second support member 34 so as to be displaceable in the pipe axis direction.

Effects As described above, according to the present invention, a small and lightweight ceiling-suspended heater can be realized. That is, since the combustion of the fuel is performed in the combustion chamber, it is possible to set the length and thickness of the radiating pipe through which the high temperature combustion gas is guided. By providing a plurality of thin heat dissipation pipes, the heat dissipation area of the heat dissipation pipes can be increased and the heating range can be widened. In addition, the upper surface and both sides of the radiating pipe are covered with a heat-shielding reflection plate, and the surrounding air is pushed downward by a pushing fan, and there is no heat stored in the ceiling, so there is no risk of fire due to low temperature ignition. . Furthermore, the entire room can be heated uniformly. By these, the thermal efficiency can be further improved.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view of an embodiment of the present invention, and FIG.
Fig. 3 is an exploded perspective view of the heater 11 shown in Fig. 3, Fig. 3 is an enlarged side view of the first radiating pipe 27, Fig. 4 is a sectional view taken along the section line IV-IV in Fig. 1, and Fig. 5 are shown. Is a side view seen from the cutting area V-V in FIG. 1, FIG. 6 is a cutaway sectional view of the first header 25, FIG. 7 is a perspective view of a part of the first support member 33, and FIG. FIG. 9 is a perspective view of a part of the second support member 34, and FIG. 9 is a sectional view of the prior art. 11 …… Ceiling hanging far infrared heater, 20 …… Huan, 22
...... Combustion chamber, 23 …… Bunsen gas burner, 25 …… First header, 26 …… Rectangular plate, 26 …… Supply chamber, 27 …… First radiating pipe, 28 …… Second header, 29 …… Discharge chamber , 30 ...... second radiating pipe, 33 ...... first supporting member, 34 ...... second supporting member, 37 ......
Heat shield / reflector, 40 …… Cover, 45 …… Indented fan

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yasutaka Arai 5-1, Hirano-cho, Higashi-ku, Osaka-shi, Osaka Prefecture Osaka Osaka Co., Ltd. (72) Inventor Riki Uchida 7-7 Higashi-shinho, Niigata Prefecture Inside the Tata Plant (72) Inventor Minoru Yokoyama 7-7 Higashishinbo, Sanjo City, Niigata Prefecture Uchida Mfg. Co., Ltd. (72) Inventor Koichi Sekine 7-7 Higashishinbo, Sanjo City, Niigata Uchida Mfg. Co., Ltd. (56) References Jikkou 2-47413 (JP, Y2) Jikkou 2-47414 (JP, Y2)

Claims (1)

[Claims] 1. A first header having a combustion chamber, a supply chamber to which combustion gas from the combustion chamber is supplied for heating, and a discharge chamber to which exhaust gas used for heating is introduced. A first heat radiating pipe, which is commonly connected to the supply chamber of 1 Hedda and arranged in parallel to each other, and which emits far infrared rays, and one end of which is commonly connected to the discharge chamber of the first Hedda and is parallel to the first heat radiating pipe. A second heat radiation pipe that radiates far infrared rays, a second heat pipe to which the other ends of the first heat radiation pipe and the second heat radiation pipe are commonly connected, and a first heat radiation pipe and a second heat radiation pipe. Heat shield reflection plate that covers the upper surface and both side surfaces of the heat shield reflector, and the first heat dissipation pipe and the second heat shield plate that covers the upper surface and both side surfaces of the heat shield reflector plate.
A ceiling-suspended type including: a cover having a means for supporting a heat radiation tube and a suspending means; and a pressing fan provided on an upper surface of the cover for sending air between the cover and the heat shield reflection plate downward. Far infrared heater.